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We redesign our robotic arm by changing where the straws were and how it bend up and down and less amount of paper clip in the cup.

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So basically the arm works like this, we put the brad

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We thought if we took apart the whole robot arm and redesign the arm from scratch it would be better. We tried a few ideas. It was terrible. We found a new design and at first it worked! But then Mr.Shannon said the arm needed to be straight. We fixed it, but it didn't move enough! Mr.Shannon said a arm moves freely. Our arm barely moved at all. It made our design worst! At first our arm moved free and it was straight. The redesign made it terrible. We learned that sometimes redesigns don't work. But we learn threw failure and next time we will be careful when we redes

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We redesigned the arm by putting the 3 straws on the surface of the long cardboard piece. We then put the long straw on the small cardboard piece. We also made the cup look like a bucket so it would balance.

Then we made the cup look like a bucket by poking 2 holes with the paperclips and made both of the 2 paper clips that made the handle so we then tied the string to the handle so it would be able to carry it on the other end.

It was able to carry 104 paper clips in total so it in proved.

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We designed are robotic arm by using the brass pin holding the 2 cardboard's. Next the straws on the cardboard.Also taping the cup on the cardboard and taping tape so the paperclips wouldn't fall out the cup.After that string is going threw the straws and on the other end the string is taped.Then just pull the string that's hanging to move the robotic arm.

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We came up with the design by using our other body but just adding double the string and we got the hook from the tutorial on the ninth resource page. It wasn't better than the original design because the original design could hold 37 but this design couldn't hold more than 25 without it tipping over every time i try to raise it. So did it improve...

... No :)